To cite package ‘cvap’ in publications use:

  Kenny C (2024). _cvap: Citizen Voting Age Population_. R package
  version 0.1.5, , <https://github.com/christopherkenny/cvap>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cvap: Citizen Voting Age Population},
    author = {Christopher T. Kenny},
    year = {2024},
    note = {R package version 0.1.5, 
},
    url = {https://github.com/christopherkenny/cvap},
  }